Didn't know that; is Airbus not entering this race at all, in which case can we take it that the 778X has it "in the bag" as far as Qantas is concerned?
Airbus is in the running, but proposing a modified -1000 ULR or a ULH -900 more akin to the original -900R (basically a -1000 shrink)
As much as I would love to see the original A359R (hello new favorite aircraft!) be in the running.... there's no public information that it's part of the QF proposal.
Granted, anything could be being discussed behind closed doors, but from anything thus far leaked or suggested by media, Airbus' offering has moved beyond the -900 frame and to what's essentially an A350-1000 with increased MTOW plus the -ULR systems modifications.
IB got the first version of the modified winglet for the A359, does that mean all other deliveries will get that automatically as well?
The new winglets came alongside the new wing-twist and the 280T weight availability for non-ULR frames (delivered two years before promise!) along with several other features (e.g. lighter door frames, etc) as well.
Airbus has said that subsequent operators will now be getting all of the above (weight of course is optional).
I myself, suspect a more prosaic motive... ~Thranduil